.guassbox {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;

  .bg {
    position: absolute;
    top: -40px;
    left: -40px;
    width: calc(100% + 80px);
    height: calc(100% + 80px);
    opacity: 0.5;
    filter: blur(40px);
    z-index: 1;
  }

  .mask {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #ddd;
    transition: all 1s;
    z-index: 2;
  }

  .content {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
    z-index: 3;
  }
}